Grinding aids are gradually being touted by cement companies. What effect can be achieved by using cement grinding aids?
(1) Improve the grinding efficiency. After the grinding aid is adsorbed on the surface of the material in the grinding, it can reduce the surface free energy of the particles and reduce the grinding resistance. 1 ton of cement can save 4-12kwh of electricity consumption, which can save the production of ton of cement for the enterprise. Cost 7 to 15 yuan, and can reduce CO2 and S02 emissions, reduce environmental pollution, and strengthen the use of industrial waste residue.
(2) Improve production capacity, can increase the output of the mill by 10% to 25%, meet the market demand at the peak of cement, expand the market share, and avoid the loss of customers due to insufficient production capacity during the peak season of cement. Expand the production scale and increase the annual production capacity without increasing equipment investment; when the annual production capacity is the same, reduce the grinding time, reasonably avoid high electricity prices and peak electricity consumption, and reasonably arrange equipment maintenance and repair time.
(3) Improve the fluidity of cement and the dispersibility of cement. Grinding agent molecules can form a protective film on the surface of cement particles, which makes the cement particles not easy to be wetted, and eliminates the electrostatic adsorption between cement particles. Improve the fluidity of cement, reduce the time and cost of cement loading and unloading, reduce the cost of pumping, and reduce the cement agglomeration index, which is especially conducive to water and port loading and unloading operations and highway long-distance transportation. Extend the inventory time of cement and reduce the troubles and costs caused by the clearance.
(4) Improve the performance of cement, increase the ratio of 3 to 32 μm particles in cement, effectively improve the gradation of cement particles, promote the spheroidization of cement particles, increase the roundness coefficient of cement particles, and increase the 3-day strength of cement by 2～ 4MP, 28-day intensity increased by 4-8MP. To make it more in line with national standards or where national standards allow, reasonable use of weathered clinker or blending more mixed materials to reduce production costs, reduce energy consumption, reduce environmental pollution, and make more use of industrial waste residues and Secondary energy.
(5) The enhancement effect is obvious, which can assist the production of high-grade cement. The produced cement has good compatibility with various concrete admixtures, and the water demand of the concrete is not affected, which can improve the strength of the concrete at all ages.
(6) reduce the load of the mill, improve the efficiency of powder selection, increase the utilization rate of the equipment attached to the mill; reduce the maintenance and maintenance costs caused by tons of cement; improve the labor efficiency of workers and save office costs.
(7) No effect on the durability of concrete, no reduction in freeze-thaw resistance and resistance to carbonization, no impact on the shrinkage rate of cement mortar, and no chloride ion, low alkali content, and no ammonia release , Can continue to improve the performance index of the middle and late strength of concrete.
In short, the scientific selection and use of cement grinding aids has brought significant economic benefits to cement enterprises, and at the same time, it can ensure the healthy operation of cement enterprise production equipment, and provide safe, reliable, and non-hazardous cement grinding aid products. The social responsibility of abrasive production enterprises!